corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
2286123 | quant-ph/0307166 | 2003-07-23 | Scaling and renormalization in fault-tolerant quantum computers | This work is concerned with phrasing the concepts of fault-tolerant quantum computation within the framework of disordered systems, Bernoulli site percolation in particular. We show how the so-called "threshold theorems" on the possibility of fault-tolerant quantum computation with constant error rate can be cast as a ... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m raginsky_1",
"name": "Maxim Raginsky",
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}
] | null |
10739540 | physics/0307124 | 2003-07-24 | Potentials of a uniformly moving point charge in the Coulomb gauge | The Coulomb-gauge vector potential of a uniformly moving point charge is obtained by calculating the gauge function for the transformation between the Lorenz and Coulomb gauges. The expression obtained for the difference between the vector potentials in the two gauges is shown to satisfy a Poisson equation to which the... | [
"physics.class-ph",
"physics.gen-ph"
] | null | [
"target.key_reference"
] | null | null | null |
37722505 | cond-mat/0307599 | 2003-07-24 | Atomically precise placement of single dopants in Si | We demonstrate the controlled incorporation of P dopant atoms in Si (001) presenting a new path toward the creation of atomic-scale electronic devices. We present a detailed study of the interaction of PH3 with Si (001) and show that it is possible to thermally incorporate P atoms into Si (001) below the H desorption t... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119445748 | astro-ph/0307429 | 2003-07-24 | Meeting the Cool New Neighbors V: A 2MASS-Selected Sample of Ultracool Dwarfs | We present initial results of our effort to create a statistically robust, volume-limited sample of ultracool dwarfs from the 2MASS Second Incremental Data Release. We are engaged in a multifaceted search for nearby late-type dwarfs and this is the first installment of our search using purely photometric selection. The... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5890100 | math/0307321 | 2003-07-24 | A group-theoretic approach to fast matrix multiplication | We develop a new, group-theoretic approach to bounding the exponent of matrix multiplication. There are two components to this approach: (1) identifying groups G that admit a certain type of embedding of matrix multiplication into the group algebra C[G], and (2) controlling the dimensions of the irreducible representat... | [
"math.GR",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5052538 | cs/0307055 | 2003-07-24 | Learning Analogies and Semantic Relations | We present an algorithm for learning from unlabeled text, based on the Vector Space Model (VSM) of information retrieval, that can solve verbal analogy questions of the kind found in the Scholastic Aptitude Test (SAT). A verbal analogy has the form A:B::C:D, meaning "A is to B as C is to D"; for example, mason:stone::c... | [
"cs.LG",
"cs.CL",
"cs.IR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18391317 | astro-ph/0307422 | 2003-07-24 | Quantitative Interpretation of Quasar Microlensing Light Curves | We develop a general method for analyzing the light curves of microlensed quasars and apply it to the OGLE light curves of the four-image lens Q2237+0305. We simultaneously estimate the effective source velocity, the average stellar mass, the stellar mass function, and the size and structure of the quasar accretion dis... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119072929 | astro-ph/0307435 | 2003-07-24 | Photometry and Spectroscopy of GRB 030329 and Its Associated Supernova 2003dh: The First Two Months | We present extensive optical and infrared photometry of the afterglow of gamma-ray burst (GRB) 030329 and its associated supernova (SN) 2003dh over the first two months after detection (2003 March 30-May 29 UT). Optical spectroscopy from a variety of telescopes is shown and, when combined with the photometry, allows an... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119345013 | quant-ph/0307190 | 2003-07-25 | Lower bounds on the complexity of simulating quantum gates | We give a simple proof of a formula for the minimal time required to simulate a two-qubit unitary operation using a fixed two-qubit Hamiltonian together with fast local unitaries. We also note that a related lower bound holds for arbitrary n-qubit gates. | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2716487 | math/0307330 | 2003-07-25 | Spectral measure of large random Hankel, Markov and Toeplitz matrices | We study the limiting spectral measure of large symmetric random matrices of linear algebraic structure. For Hankel and Toeplitz matrices generated by i.i.d. random variables $\{X_k\}$ of unit variance, and for symmetric Markov matrices generated by i.i.d. random variables $\{X_{ij}\}_{j>i}$ of zero mean and unit varia... | [
"math.PR",
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"math.ST",
"stat.TH"
] | null | [
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] | null | null | null |
15627443 | astro-ph/0307446 | 2003-07-25 | The extended tails of Palomar 5: A ten degree arc of globular cluster tidal debris | Using wide-field photometric data from the Sloan Digital Sky Survey (SDSS) we recently showed that the Galactic globular cluster Palomar 5 is in the process of being tidally disrupted. Its tidal tails were initially detected in a 2.5 degree wide band along the celestial equator. A new analysis of SDSS data for a larger... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
45491354 | cond-mat/0307652 | 2003-07-25 | Evidence for nano-scale inhomogeneities in bilayer manganites in the Mn\sp{4+} rich region: $\bm{0.54 \leq x \leq 0.80}$ | The atomic pair distribution function (PDF) technique is employed to probe the atomic local structural responses in naturally double layered manganites \lsmo in the doping range $0.54 \leq x \leq 0.80$. Our low temperature neutron powder diffraction measurements suggest the coexistence of two different Jahn-Teller (JT)... | [
"cond-mat.str-el",
"cond-mat.mtrl-sci"
] | null | [
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{
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"name": "Simon [\"J.\",\"L.\"] Billinge",
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21010154 | quant-ph/0307180 | 2003-07-25 | Stability of macroscopic entanglement under decoherence | We investigate the lifetime of macroscopic entanglement under the influence of decoherence. For GHZ-type superposition states we find that the lifetime decreases with the size of the system (i.e. the number of independent degrees of freedom) and the effective number of subsystems that remain entangled decreases with ti... | [
"quant-ph"
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{
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"name": "Hans [\"J.\"] Briegel",
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13849508 | astro-ph/0307460 | 2003-07-26 | Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys | We show that the measurement of the baryonic acoustic oscillations in large high redshift galaxy surveys offers a precision route to the measurement of dark energy. The cosmic microwave background provides the scale of the oscillations as a standard ruler that can be measured in the clustering of galaxies, thereby yiel... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11600751 | hep-ph/0307335 | 2003-07-28 | Quasi-particle Specific Heats for the Crystalline Color Superconducting Phase of QCD | We calculate the specific heats of quasi-particles of two-flavor QCD in its crystalline phases for low temperature. We show that for the different crystalline structures considered here there are gapless modes contributing linearly in temperature to the specific heat. We evaluate also the phonon contributions which are... | [
"hep-ph",
"astro-ph"
] | null | [
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] | [] | [
{
"author_id": "r casalbuoni_0",
"name": "Roberto Casalbuoni",
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},
{
"author_id": "r gatto_1",
"name": "Raoul Gatto",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
14069874 | quant-ph/0307205 | 2003-07-28 | Self testing quantum apparatus | We study a configuration of devices that includes (1) a source of some unknown bipartite quantum state that is claimed to be the Bell state $\Phi^+$ and (2) two commuting but otherwise unknown measurement apparatus, one on each side, that are each claimed to execute an orthogonal measurement at an angle $\theta \in \{0... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14912884 | astro-ph/0307490 | 2003-07-28 | Star Formation Across the Taffy Bridge: UGC 12914/15 | We present BIMA two-field mosaic CO(1-0) images of the Taffy galaxies (UGC 12914/15), which show the distinct taffy-like radio continuum emission bridging the two spiral disks. Large amounts of molecular gas (1.4 x 10^{10} Msun, using the standard Galactic CO-to-H$_2$ conversion applicable to Galactic disk giant molecu... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16320198 | astro-ph/0307487 | 2003-07-28 | A New Simple Model for High Frequency Quasi Periodic Oscillations in Black Hole Candidates | Observations of X-ray emissions from binary systems have long since been considered important tools to test General Relativity in strong-field regimes. The high frequency quasi-periodic oscillations (HFQPOs) observed in binaries containing a black hole candidate, in particular, have been proposed as a means to measure ... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8009987 | astro-ph/0307505 | 2003-07-29 | Exploring Halo Substructure with Giant Stars: Spectroscopy of Stars in the Galactic Anticenter Stellar Structure | To determine the nature of the recently discovered, ring-like stellar structure at the Galactic anticenter, we have collected spectra of a set of presumed constituent M giants selected from the 2MASS point source catalog. Radial velocities have been obtained for stars spanning ~100 degrees, exhibiting a trend in veloci... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15935293 | hep-ex/0307079 | 2003-07-29 | Search for Narrow t-tbar Resonances in ppbar Collisions at \root{s} = 1.8 TeV | A search for narrow resonances that decay into t-tbar pairs has been performed using 130 pb^{-1} of data in the lepton+jets channel collected in p-pbar collisions at \sqrt{s} = 1.8 TeV. There is no significant deviation observed from the standard model, and upper limits at the 95 % confidence level on the product of th... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v abazov_1",
"name": "Victor [\"Mukhamedovich\"] Abazov",
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},
{
"author_id": "b abbott_2",
"name": "B. Abbott",
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335690 | physics/0307140 | 2003-07-29 | A Bound on Mixing Efficiency for the Advection-Diffusion Equation | An upper bound on the mixing efficiency is derived for a passive scalar under the influence of advection and diffusion with a body source. For a given stirring velocity field, the mixing efficiency is measured in terms of an equivalent diffusivity, which is the molecular diffusivity that would be required to achieve th... | [
"physics.flu-dyn",
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14767557 | cond-mat/0307719 | 2003-07-30 | Random Walks on Complex Networks | We investigate random walks on complex networks and derive an exact expression for the mean first passage time (MFPT) between two nodes. We introduce for each node the random walk centrality $C$, which is the ratio between its coordination number and a characteristic relaxation time, and show that it determines essenti... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9923059 | astro-ph/0307515 | 2003-07-30 | Myths and Truths Concerning Estimation of Power Spectra | It is widely believed that maximum likelihood estimators must be used to provide optimal estimates of power spectra. Since such estimators require require of order N_d^3 operations they are computationally prohibitive for N_d greater than a few tens of thousands. Because of this, a large and inhomogeneous literature ex... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17152850 | quant-ph/0307227 | 2003-07-30 | On the existence of physical transformations between sets of quantum states | Let A = {rho_1,...,rho_n} be a given set of quantum states. We consider the problem of finding necessary and sufficient conditions on another set B = {sigma_1,...,sigma_n} that guarantee the existence of a physical transformation taking rho_i to sigma_i for all i. Uhlmann has given an elegant such condition when both s... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18545682 | physics/0307153 | 2003-07-30 | Effective equations for discrete systems: A time stepper based approach | We propose a computer-assisted approach to studying the effective continuum behavior of spatially discrete evolution equations. The advantage of the approach is that the "coarse model" (the continuum, effective equation) need not be explicitly constructed. The method only uses a time-integration code for the discrete p... | [
"physics.comp-ph",
"physics.gen-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j moeller_2",
"name": "Jeffrey [\"C.\"] Moeller",
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},
{
"author_id": "o runborg_1",
"name": "Olof Runborg",
"publication_history": null,
"h_index": null,
"num_papers... | null |
6342297 | cs/0307070 | 2003-07-30 | Modeling Belief in Dynamic Systems, Part I: Foundations | Belief change is a fundamental problem in AI: Agents constantly have to update their beliefs to accommodate new observations. In recent years, there has been much work on axiomatic characterizations of belief change. We claim that a better understanding of belief change can be gained from examining appropriate semantic... | [
"cs.AI",
"cs.LO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16834554 | hep-th/0307293 | 2003-07-30 | Modular Matrix Models | Inspired by a formal resemblance of certain q-expansions of modular forms and the master field formalism of matrix models in terms of Cuntz operators, we construct a Hermitian one-matrix model, which we dub the ``modular matrix model.'' Together with an N=1 gauge theory and a special Calabi-Yau geometry, we find a modu... | [
"hep-th"
] | null | [
"target.author.publication_history"
] | [
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{
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{
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{
"corpus_id": "17462429",
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... | [
{
"author_id": "y he_21",
"name": "Yang-Hui He",
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{
"author_id": "v jejjala_1",
"name": "Vishnu Jejjala",
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"n... | null |
9570559 | nlin/0308002 | 2003-07-31 | Simulating the time series of a selected gene expression profile in an agent-based tumor model | To elucidate the role of environmental conditions in molecular-level dynamics and to study their impact on macroscopic brain tumor growth patterns, the expression of the genes Tenascin C and PCNA in a 2D agent-based model for the migratory trait is calibrated using experimental data from the literature, while the expre... | [
"nlin.AO",
"nlin.PS",
"physics.bio-ph",
"q-bio.TO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1710176 | nucl-ex/0307025 | 2003-07-31 | Pion-Kaon correlations in central Au+Au collisions at $\sqrt{s_{NN}} = 130$ GeV | Pion-kaon correlation functions are constructed from central Au+Au data taken at $\sqrt{s_{NN}} = 130$ GeV. The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e. transverse flow, lead to a space-time emission asymmetry of pions and kaons that is... | [
"nucl-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j adams_4",
"name": "J. [\"R.\"] Adams",
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{
"author_id": "c adler_1",
"name": "Clemens Adler",
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... | null |
12516303 | quant-ph/0308011 | 2003-08-01 | Measuring 4-local n-qubit observables could probabilistically solve PSPACE | We consider a hypothetical apparatus that implements measurements for arbitrary 4-local quantum observables A on n qubits. The apparatus implements the ``measurement algorithm'' after receiving a classical description of A. We show that a few precise measurements, applied to a basis state would provide a probabilistic ... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p wocjan_2",
"name": "Pawel Wocjan",
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},
{
"author_id": "d janzing_1",
"name": "Dominik Janzing",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
117563440 | quant-ph/0308006 | 2003-08-01 | Optimal Quantum Circuits for General Two-Qubit Gates | In order to demonstrate non-trivial quantum computations experimentally, such as the synthesis of arbitrary entangled states, it will be useful to understand how to decompose a desired quantum computation into the shortest possible sequence of one-qubit and two-qubit gates. We contribute to this effort by providing a m... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
502044 | astro-ph/0308019 | 2003-08-01 | The MACHO Project Large Magellanic Cloud variable star inventory. XI. Frequency analysis of the fundamental mode RR Lyrae stars | We have frequency analyzed 6391 variables classified earlier as fundamental mode RR Lyrae (RR0) stars in the MACHO database on the Large Magellanic Cloud (LMC). The overwhelming majority of these variables have been proved to be indeed RR0 stars, whereas the remaining ones have fallen in one of the following categories... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
31476678 | gr-qc/0308007 | 2003-08-03 | Summation by parts and dissipation for domains with excised regions | We discuss finite difference techniques for hyperbolic equations in non-trivial domains, as those that arise when simulating black hole spacetimes. In particular, we construct dissipative and difference operators that satisfy the {\it summation by parts} property in domains with excised multiple cubic regions. This pro... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g calabrese_1",
"name": "Gioel Calabrese",
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{
"author_id": "l lehner_1",
"name": "Luis Lehner",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119379245 | astro-ph/0308037 | 2003-08-03 | CHANDRA observations of the NGC 1550 galaxy group -- implication for the temperature and entropy profiles of 1 keV galaxy groups | We present a detailed \chandra study of the galaxy group NGC 1550. For its temperature (1.37$\pm$0.01 keV) and velocity dispersion ($\sim$ 300 km s$^{-1}$), the NGC 1550 group is one of the most luminous known galaxy groups (L$_{\rm bol}$ = 1.65$\times10^{43}$ erg s$^{-1}$ within 200 kpc, or 0.2 \rv). We find that with... | [
"astro-ph"
] | null | [
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{
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{
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... | [
{
"author_id": "m sun_72",
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{
"author_id": "w forman_1",
"name": "William [\"R.\"] Forman",
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... | null |
37717744 | hep-ph/0308036 | 2003-08-05 | RS1, Custodial Isospin and Precision Tests | We study precision electroweak constraints within a RS1 model with gauge fields and fermions in the bulk. The electroweak gauge symmetry is enhanced to SU(2)_L \times SU(2)_R \times U(1)_{B-L}, thereby providing a custodial isospin symmetry sufficient to suppress excessive contributions to the T parameter. We then cons... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119391462 | astro-ph/0308071 | 2003-08-05 | Monoperiodic $\delta$ Scuti star UY Cam: an analogue of SX Phe and RR Lyr-type variables | We present the results of a four-year photometric study of the high-amplitude $\delta$ Scuti star (HADS) UY Camelopardalis. Analyses on the available data from 1985 to 2003 show that UY Cam is monoperiodic. Fourier solutions for individual data sets do not reveal period changes in the star. Although forced parabolic fi... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18001239 | quant-ph/0308032 | 2003-08-05 | A complete family of separability criteria | We introduce a new family of separability criteria that are based on the existence of extensions of a bipartite quantum state $\rho$ to a larger number of parties satisfying certain symmetry properties. It can be easily shown that all separable states have the required extensions, so the non-existence of such an extens... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | [] | null | null |
14579423 | nucl-th/0308017 | 2003-08-05 | Theory of fusion hindrance and synthesis of the superheavy elements | The two-step model for fusion reactions of massive systems is briefly reviewed.By the use of fusion probabilities obtained by the model and of survival probabilities obtained by the new statistical code, we predict residue cross sections for 48Ca+actinide systems leading to superheavy elements with Z=114, 116 and 118. | [
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y abe_1",
"name": "Yasuhisa Abe",
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{
"author_id": "b bouriquet_1",
"name": "Bertrand Bouriquet",
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"num_papers": null,... | null |
365149 | nucl-th/0308018 | 2003-08-06 | On Theoretical Problems in Synthesis of Superheavy Elements | Towards precise predictions of residue cross sections of the superheavy elements, recent theoretical developments of reaction mechanisms are presented, together with the remaining problems which give rise to ambiguities in absolute values of cross sections predicted. | [
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y abe_1",
"name": "Yasuhisa Abe",
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{
"author_id": "b bouriquet_1",
"name": "Bertrand Bouriquet",
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119374559 | nucl-th/0308019 | 2003-08-06 | Predictions of the residue cross-sections for the elements Z=113 and Z=114 | An extremely good reproduction of experimental excitation function of the 1n reactions producing Z=110,Z=111 and Z=112 is obtained by the two-step model and the statistical decay code KEWPIE. Thus, an extension of the recipe permits us to predict reliable values of the residue cross-sections of the elements Z=113 and Z... | [
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b bouriquet_1",
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{
"author_id": "y abe_1",
"name": "Yasuhisa Abe",
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"num_papers": null,... | null |
15749334 | quant-ph/0308039 | 2003-08-06 | Quantum Equilibrium and the Origin of Absolute Uncertainty | The quantum formalism is a ``measurement'' formalism--a phenomenological formalism describing certain macroscopic regularities. We argue that it can be regarded, and best be understood, as arising from Bohmian mechanics, which is what emerges from Schr\"odinger's equation for a system of particles when we merely insist... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
42188849 | nucl-th/0308020 | 2003-08-06 | KEWPIE: a dynamical cascade code for decaying exited compound nuclei | A new dynamical cascade code for decaying hot nuclei is proposed and specially adapted to the synthesis of super-heavy nuclei. For such a case, the interesting channel is the tiny fraction that will decay through particles emission, thus the code avoids classical Monte-Carlo methods and proposes a new numerical scheme.... | [
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b bouriquet_1",
"name": "Bertrand Bouriquet",
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},
{
"author_id": "y abe_1",
"name": "Yasuhisa Abe",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
119435332 | quant-ph/0308042 | 2003-08-07 | Adiabatic quantum computation and quantum phase transitions | We analyze the ground state entanglement in a quantum adiabatic evolution algorithm designed to solve the NP-complete Exact Cover problem. The entropy of entanglement seems to obey linear and universal scaling at the point where the mass gap becomes small, suggesting that the system passes near a quantum phase transiti... | [
"quant-ph",
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j latorre_1",
"name": "José [\"Ignacio\"] Latorre",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "r orús_1",
"name": "Román Orús",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
10986985 | cs/0308020 | 2003-08-07 | LERIL : Collaborative Effort for Creating Lexical Resources | The paper reports on efforts taken to create lexical resources pertaining to Indian languages, using the collaborative model. The lexical resources being developed are: (1) Transfer lexicon and grammar from English to several Indian languages. (2) Dependencey tree bank of annotated corpora for several Indian languages.... | [
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a bharati_2",
"name": "Akshar Bharati",
"publication_history": null,
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},
{
"author_id": "d sharma_7",
"name": "Dipti [\"Misra\"] Sharma",
"publication_history": null,
"h_index": null,
"num_paper... | null |
15681753 | quant-ph/0308045 | 2003-08-07 | Recognizing Small-Circuit Structure in Two-Qubit Operators and Timing Hamiltonians to Compute Controlled-Not Gates | This work proposes numerical tests which determine whether a two-qubit operator has an atypically simple quantum circuit. Specifically, we describe formulae, written in terms of matrix coefficients, characterizing operators implementable with exactly zero, one, or two controlled-not (CNOT) gates and all other gates bei... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6797755 | quant-ph/0308044 | 2003-08-07 | A family of quantum protocols | We introduce two dual, purely quantum protocols: for entanglement distillation assisted by quantum communication (``mother'' protocol) and for entanglement assisted quantum communication (``father'' protocol). We show how a large class of ``children'' protocols (including many previously known ones) can be derived from... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118948512 | cond-mat/0308124 | 2003-08-07 | Numerical study of hydrogenic effective mass theory for an impurity P donor in Si in the presence of an electric field and interfaces | In this paper we examine the effects of varying several experimental parameters in the Kane quantum computer architecture: A-gate voltage, the qubit depth below the silicon oxide barrier, and the back gate depth to explore how these variables affect the electron density of the donor electron. In particular, we calculat... | [
"cond-mat",
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l kettle_1",
"name": "L. [\"M.\"] Kettle",
"publication_history": null,
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},
{
"author_id": "h goan_1",
"name": "Hsi-Sheng Goan",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
11243858 | hep-th/0308056 | 2003-08-07 | Instability of Ultra-Spinning Black Holes | It has long been known that, in higher-dimensional general relativity, there are black hole solutions with an arbitrarily large angular momentum for a fixed mass. We examine the geometry of the event horizon of such ultra-spinning black holes and argue that these solutions become unstable at large enough rotation. Henc... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1115800 | astro-ph/0308140 | 2003-08-08 | Cosmological Evolution of the Hard X-ray AGN Luminosity Function and the Origin of the Hard X-ray Background | We investigate the cosmological evolution of the hard X-ray luminosity function (HXLF) of Active Galactic Nuclei (AGN) in the 2-10 keV luminosity range of 10^{41.5} - 10^{46.5} erg s^-1 as a function of redshift up to 3. From a combination of surveys conducted at photon energies above 2 keV with HEAO1, ASCA, and Chandr... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1017547 | hep-ex/0309032 | 2003-08-10 | Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays | We report the observation of a narrow charmonium-like state produced in the exclusive decay process B+ -> K+ pi+pi- J/psi. This state, which decays into pi+pi- J/psi, has a mass of 3872.0+-0.6(stat)+-0.5(syst) MeV, a value that is very near the M_D + M_D* mass threshold. The results are based on an analysis of 152M B-B... | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118957366 | astro-ph/0308185 | 2003-08-11 | Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the Advanced Camera for Surveys on HST | We present discoveries of SNe Ia at z > 1 and the photometric diagnostic used to discriminate them from other types of SNe detected during the GOODS Hubble Space Telescope Treasury program with the Advanced Camera for Surveys (ACS). Photometric redshift measurements of the hosts combined with deep f606w, f775w, and f85... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
169860743 | cond-mat/0308217 | 2003-08-11 | Finding and evaluating community structure in networks | We propose and study a set of algorithms for discovering community structure in networks -- natural divisions of network nodes into densely connected subgroups. Our algorithms all share two definitive features: first, they involve iterative removal of edges from the network to split it into communities, the edges remov... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
16674342 | hep-lat/0308012 | 2003-08-12 | Confining strings in representations with common $n$-ality | We study the spectrum of confining strings in SU(3) pure gauge theory, by means of lattice Monte Carlo simulations, using torelon operators in different representations of the gauge group. Our results provide direct evidence that the string spectrum is according to predictions based on $n$-ality. Torelon correlations i... | [
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
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},
{
"author_id": "h panagopoulos_1",
"name": "Haralambos Panagopoulos",
"publication_history": null,
"h_index": null,
... | null |
3262458 | quant-ph/0308072 | 2003-08-12 | Computational Complexity Measures of Multipartite Quantum Entanglement | We shed new light on entanglement measures in multipartite quantum systems by taking a computational-complexity approach toward quantifying quantum entanglement with two familiar notions--approximability and distinguishability. Built upon the formal treatment of partial separability, we measure the complexity of an ent... | [
"quant-ph",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t yamakami_1",
"name": "Tomoyuki Yamakami",
"publication_history": null,
"h_index": null,
"num_papers": null,
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}
] | null |
23553436 | cond-mat/0308275 | 2003-08-14 | Distinct regimes of elastic response and deformation modes of cross-linked cytoskeletal and semiflexible polymer networks | Semiflexible polymers such as filamentous actin play a vital role in the mechanical behavior of cells, yet the basic properties of cross-linked F-actin networks remain poorly understood. To address this issue, we have performed numerical studies of the linear response of homogeneous and isotropic two-dimensional networ... | [
"cond-mat.soft"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
22402845 | physics/0308059 | 2003-08-14 | On Statistical Methods of Parameter Estimation for Deterministically Chaotic Time-Series | We discuss the possibility of applying some standard statistical methods (the least square method, the maximum likelihood method, the method of statistical moments for estimation of parameters) to deterministically chaotic low-dimensional dynamic system (the logistic map) containing an observational noise. A ``pure'' M... | [
"physics.data-an",
"physics.class-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5726620 | cs/0308024 | 2003-08-15 | Relational Grid Monitoring Architecture (R-GMA) | We describe R-GMA (Relational Grid Monitoring Architecture) which has been developed within the European DataGrid Project as a Grid Information and Monitoring System. Is is based on the GMA from GGF, which is a simple Consumer-Producer model. The special strength of this implementation comes from the power of the relat... | [
"cs.DC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r byrom_1",
"name": "Rob Byrom",
"publication_history": null,
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},
{
"author_id": "b coghlan_1",
"name": "Brian [\"A.\"] Coghlan",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
16877915 | astro-ph/0308266 | 2003-08-15 | Searching for non-Gaussianity in the VSA data | We have tested Very Small Array (VSA) observations of three regions of sky for the presence of non-Gaussianity, using high-order cumulants, Minkowski functionals, a wavelet-based test and a Bayesian joint power spectrum/non-Gaussianity analysis. We find the data from two regions to be consistent with Gaussianity. In th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16105787 | astro-ph/0308271 | 2003-08-15 | Enhanced Optical Emission During Crab Giant Radio Pulses | We detected a correlation between optical and giant radio pulse emission from the Crab pulsar. Optical pulses coincident with the giant radio pulses were on average 3% brighter than those coincident with normal radio pulses. Combined with the lack of any other pulse profile changes, this result indicates that both the ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119384818 | astro-ph/0308272 | 2003-08-15 | GEMS Imaging of Red Sequence Galaxies at z~0.7: Dusty or Old? | We have used the 30'x30' Hubble Space Telescope image mosaic from the Galaxy Evolution from Morphology and SEDs (GEMS) project in conjunction with the COMBO-17 deep photometric redshift survey to define a sample of nearly 1500 galaxies with 0.65 < z < 0.75. With this sample, we can study the distribution of rest-frame ... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
{
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{
"corpus_id": "1419852",
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{
"corpus_id": "10107223",
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{
"corpus_id": "14012234",
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},
{
"corpus_id": "10794058",
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},... | [
{
"author_id": "e bell_2",
"name": "Eric [\"F.\"] Bell",
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},
{
"author_id": "d mcintosh_2",
"name": "D. [\"H.\"] Mcintosh",
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6239566 | astro-ph/0308296 | 2003-08-18 | High-Energy Emission from Pulsars: The Polar Cap Scenario | The study of pulsars in the three and a half decades since their discovery has highlighted a handful of issues critical to their understanding. To date there is no consensus on the physical mechanism for their radio radio emission, despite a rapid increase in the observed population due to the Parkes Multi-Beam survey ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12494781 | astro-ph/0308297 | 2003-08-18 | Type Ia supernovae in dense circumstellar gas | We propose a simple model for the bolometric light curve of type Ia supernova exploding in a dense circumstellar (CS) envelope to describe the light curves of supernovae 2002ic and 1997cy. The modeling shows that at the radius $\sim7\times10^{15}$ cm the density of CS envelopes around both supernovae is similar. The ma... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
20808168 | hep-ph/0308199 | 2003-08-19 | TeV Symmetry and the Little Hierarchy Problem | Constraints from precision electroweak measurements reveal no evidence for new physics up to 5 - 7 TeV, whereas naturalness requires new particles at around 1 TeV to address the stability of the electroweak scale. We show that this "little hierarchy problem" can be cured by introducing a symmetry for new particles at t... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8033855 | quant-ph/0308098 | 2003-08-19 | Quantum circuits for single-qubit measurements corresponding to platonic solids | Each platonic solid defines a single-qubit positive operator valued measure (POVM) by interpreting its vertices as points on the Bloch sphere. We construct simple circuits for implementing this kind of measurements and other simple types of symmetric POVMs on one qubit. Each implementation consists of a discrete Fourie... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t decker_1",
"name": "Thomas Decker",
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},
{
"author_id": "d janzing_1",
"name": "Dominik Janzing",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
17892259 | astro-ph/0308314 | 2003-08-19 | Grain Growth in the Dark Cloud L1251 | We have performed optical imaging observations of the dark cloud L1251 at multiple wavelengths, B, V, R, and I, using the 105 cm Schmidt telescope at the Kiso Observatory, Japan. The cloud has a cometary shape with a dense "head" showing star formation activity and a relatively diffuse "tail" without any signs of star ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1835235 | astro-ph/0308328 | 2003-08-19 | The three-point correlation function of cosmic shear. II: Relation to the bispectrum of the projected mass density and generalized third-order aperture measures | We study the relation of the three-point cosmic shear statistics to the third-order statistical properties of the underlying convergence, expressed in terms of its bispectrum. Explicit relations for the natural components of the shear three-point correlation function in terms of the bispectrum are derived. The behavior... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15268276 | nucl-th/0308052 | 2003-08-20 | Zone Determinant Expansions for Nuclear Lattice Simulations | We introduce a new approximation to nucleon matrix determinants that is physically motivated by chiral effective theory. The method involves breaking the lattice into spatial zones and expanding the determinant in powers of the boundary hopping parameter. | [
"nucl-th",
"cond-mat",
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d lee_55",
"name": "Dean Lee",
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},
{
"author_id": "i ipsen_1",
"name": "Ilse [\"C.\",\"F.\"] Ipsen",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
40721866 | cond-mat/0308399 | 2003-08-20 | Modeling Dynamics of Information Networks | We propose an information-based model for network dynamics in which imperfect information leads to networks where the different vertices have widely different number of edges to other vertices, and where the topology has hierarchical features. The possibility to observe scale free networks is linked to a minimally conn... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m rosvall_1",
"name": "Martin Rosvall",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "k sneppen_1",
"name": "Kim Sneppen",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15166410 | astro-ph/0308380 | 2003-08-21 | Meeting the Cool Neighbors VII: Spectroscopy of faint, red NLTT dwarfs | We present low-resolution optical spectroscopy and BVRI photometry of 453 candidate nearby stars drawn from the NLTT proper motion catalogue. The stars were selected based on optical/near-infrared colours, derived by combining the NLTT photographic data with photometry from the 2MASS Second Incremental Data Release. Ba... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
20506791 | cond-mat/0308442 | 2003-08-21 | Probability distribution of magnetization in the one-dimensional Ising model: Effects of boundary conditions | Finite-size scaling functions are investigated both for the mean-square magnetization fluctuations and for the probability distribution of the magnetization in the one-dimensional Ising model. The scaling functions are evaluated in the limit of the temperature going to zero (T -> 0), the size of the system going to inf... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
40597650 | gr-qc/0308069 | 2003-08-21 | Analysis of LIGO data for gravitational waves from binary neutron stars | We report on a search for gravitational waves from coalescing compact binary systems in the Milky Way and the Magellanic Clouds. The analysis uses data taken by two of the three LIGO interferometers during the first LIGO science run and illustrates a method of setting upper limits on inspiral event rates using interfer... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b abbott_2",
"name": "B. [\"P.\"] Abbott",
"publication_history": null,
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},
{
"author_id": "r abbott_2",
"name": "Richard Abbott",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
15774815 | math/0308206 | 2003-08-21 | An optimal matching problem | Given two measured spaces (X,dx), (Y,dy) and a third space Z, given two functions u(x,z) and v(x,z), we study the problem of finding two maps s from X to Z and t from Y to Z such that the images s(dx) and t(dy) coincide, and the integral of u(x,s(x))dx+v(y,t(y))dy is maximal. We give condition on u and v for which ther... | [
"math.OC",
"math.AP"
] | null | [
"target.key_reference"
] | null | null | null |
18552879 | astro-ph/0308397 | 2003-08-22 | New aperture photometry of QSO 0957+561; application to time delay and microlensing | We present a re-reduction of archival CCD frames of the doubly imaged quasar 0957+561 using a new photometry code. Aperture photometry with corrections for both cross contamination between the quasar images and galaxy contamination is performed on about 2650 R-band images from a five year period (1992-1997). From the b... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119391305 | nucl-ex/0308022 | 2003-08-22 | The TOFp/pVPD Time of Flight System for STAR | A time-of-flight system was constructed for the STAR Experiment for the direct identification of hadrons produced in 197Au+197Au collisions at RHIC. The system consists of two separate detector subsystems, one called the pVPD (the "start" detector) and the other called the TOFp tray (the "stop" detector). Each detector... | [
"nucl-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15094510 | astro-ph/0308415 | 2003-08-23 | Gravitational Binding, Virialization and the Peculiar Velocity Distribution of the Galaxies | We examine the peculiar velocity distribution function of galaxies in cosmological many-body gravitational clustering. Our statistical mechanical approach derives a previous basic assumption and generalizes earlier results to galaxies with haloes. Comparison with the observed peculiar velocity distributions indicates t... | [
"astro-ph",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5923270 | quant-ph/0308125 | 2003-08-23 | Quantum NP and a Quantum Hierarchy | The complexity class NP is quintessential and ubiquitous in theoretical computer science. Two different approaches have been made to define "Quantum NP," the quantum analogue of NP: NQP by Adleman, DeMarrais, and Huang, and QMA by Knill, Kitaev, and Watrous. From an operator point of view, NP can be viewed as the resul... | [
"quant-ph",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t yamakami_1",
"name": "Tomoyuki Yamakami",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
118909459 | cond-mat/0308477 | 2003-08-24 | Local gating of carbon nanotubes | Local effects of multiple electrostatic gates placed beneath carbon nanotubes grown by chemical vapor deposition (CVD) are reported. Single-walled carbon nanotubes were grown by CVD from Fe catalyst islands across thin Mo "finger gates" (150 x 10nm). Prior to tube growth, several finger gates were patterned lithogrpahi... | [
"cond-mat.mes-hall",
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m biercuk_1",
"name": "Michael [\"J.\"] Biercuk",
"publication_history": null,
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},
{
"author_id": "n mason_1",
"name": "Nadya Mason",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
14469726 | physics/0308085 | 2003-08-24 | Increased Concentration of Polyvalent Phospholipids in the Adsorption Domain of a Charged Protein | We studied the adsorption of a charged protein onto an oppositely charged membrane, composed of mobile phospholipids of differing valence, using a statistical-thermodynamical approach. A two-block model was employed, one block corresponding to the protein-affected region on the membrane, referred to as the adsorption d... | [
"physics.bio-ph",
"cond-mat.soft",
"q-bio.SC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "e haleva_1",
"name": "Emir Haleva",
"publication_history": null,
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},
{
"author_id": "n ben-tal_0",
"name": "Nir Ben-Tal",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
119413711 | astro-ph/0308443 | 2003-08-25 | The Sloan Digital Sky Survey Quasar Catalog II. First Data Release | We present the second edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of 16713 objects in the SDSS First Data Release (DR1) that have luminosities larger than M_i=-22 (H_0=70 km/s, Omega_M=0.3, Omega_Lambda=0.7), have at least one emission line with FWHM larger than 1000 km/s, and ha... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2047718 | hep-th/0308168 | 2003-08-25 | Perturbative calculation of quasi-normal modes of Schwarzschild black holes | We discuss a systematic method of analytically calculating the asymptotic form of quasi-normal frequencies of a four-dimensional Schwarzschild black hole by expanding around the zeroth-order approximation to the wave equation proposed by Motl and Neitzke. We obtain an explicit expression for the first-order correction ... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "s musiri_1",
"name": "Suphot Musiri",
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},
{
"author_id": "g siopsis_1",
"name": "George Siopsis",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
5948186 | astro-ph/0308446 | 2003-08-25 | Weak Lensing and CMB: Parameter forecasts including a running spectral index | We use statistical inference theory to explore the constraints from future galaxy weak lensing (cosmic shear) surveys combined with the current CMB constraints on cosmological parameters, focusing particularly on the running of the spectral index of the primordial scalar power spectrum, $\alpha_s$. Recent papers have d... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m ishak_1",
"name": "Mustapha Ishak",
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},
{
"author_id": "c hirata_1",
"name": "Christopher [\"M.\"] Hirata",
"publication_history": null,
"h_index": null,
"num_pape... | null |
118971048 | cond-mat/0308510 | 2003-08-25 | A backtracking survey propagation algorithm for K-satisfiability | In this paper we present a backtracking version of the survey propagation algorithm. We show that the introduction of the simplest form of backtracking greatly improves the ability of the original survey propagation algorithm in solving difficult random problems near the sat-unsat transition. | [
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7031200 | quant-ph/0308142 | 2003-08-26 | Mutually Unbiased Bases, Generalized Spin Matrices and Separability | A collection of orthonormal bases for a complex dXd Hilbert space is called mutually unbiased (MUB) if for any two vectors v and w from different bases the square of the inner product equals 1/d: |<v,w>| ^{2}=1/d. The MUB problem is to prove or disprove the the existence of a maximal set of d+1 bases. It has been shown... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13268096 | astro-ph/0308467 | 2003-08-26 | The Size Distribution of Trans-Neptunian Bodies | [Condensed] We search 0.02 deg^2 for trans-Neptunian objects (TNOs) with m<=29.2 (diameter ~15 km) using the ACS on HST. Three new objects are discovered, roughly 25 times fewer than expected from extrapolation of the differential sky density Sigma(m) of brighter objects. The ACS and other recent TNO surveys show depar... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12419937 | physics/0308099 | 2003-08-27 | Weak Turbulent Kolmogorov Spectrum for Surface Gravity Waves | We study the long-time evolution of gravity waves on deep water exited by the stochastic external force concentrated in moderately small wave numbers. We numerically implement the primitive Euler equations for the potential flow of an ideal fluid with free surface written in canonical variables, using expansion of the ... | [
"physics.flu-dyn",
"nlin.PS",
"physics.ao-ph",
"physics.comp-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10026105 | quant-ph/0308150 | 2003-08-27 | Statistical Model with Measurement Degree of Freedom and Quantum Physics | This is an English translation of the manuscript which appeared in Surikaiseki Kenkyusho Kokyuroku No. 1055 (1998). The asymptotic efficiency of statistical estimate of unknown quantum states is discussed, both in adaptive and collective settings. Aaptive bounds are written in sigle letterized form, and collective boun... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
64471 | math/0308254 | 2003-08-27 | Tropical Convexity | The notions of convexity and convex polytopes are introduced in the setting of tropical geometry. Combinatorial types of tropical polytopes are shown to be in bijection with regular triangulations of products of two simplices. Applications to phylogenetic trees are discussed. Theorem 29 and Corollary 30 in the paper, r... | [
"math.MG",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15652428 | hep-th/0308196 | 2003-08-28 | Asymptotic form of quasi-normal modes of large AdS black holes | We discuss a method of calculating analytically the asymptotic form of quasi-normal frequencies for large AdS black holes in five dimensions. In this case, the wave equation reduces to a Heun equation. We show that the Heun equation may be approximated by a Hypergeometric equation at large frequencies. Thus we obtain t... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s musiri_1",
"name": "Suphot Musiri",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g siopsis_1",
"name": "George Siopsis",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
878441 | math/0308281 | 2003-08-28 | Quantum Groups at Roots of Unity and Modularity | For each compact, simple, simply-connected Lie group and each integer level we construct a modular tensor category from a quotient of a certain subcategory of the category of representations of the corresponding quantum group. We determine when at fractional levels the corresponding category is modular. We also give a ... | [
"math.QA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17434417 | hep-lat/0308035 | 2003-08-28 | Glueballs and the Pomeron | We present our latest results on the glueball spectrum of SU(N) gauge theories in 2+1 dimensions for spins ranging from 0 to 6 inclusive, as well as preliminary results for SU(3) in 3+1 dimensions. Simple glueball models and the relation of the even-spin spectrum to the 'Pomeron' are discussed. | [
"hep-lat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17464039 | astro-ph/0308510 | 2003-08-28 | NEXXUS: A comprehensive ROSAT survey of coronal X-ray emission among nearby solar-like stars | We present a final summary of all ROSAT X-ray observations of nearby stars. All available ROSAT observations with the ROSAT PSPC, HRI and WFC have been matched with the CNS4 catalog of nearby stars and the results gathered in the Nearby X-ray and XUV-emitting Stars data base, available via www from the Home Page of the... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5672485 | math/0308284 | 2003-08-28 | Glauber Dynamics on Trees and Hyperbolic Graphs | We study continuous time Glauber dynamics for random configurations with local constraints (e.g. proper coloring, Ising and Potts models) on finite graphs with $n$ vertices and of bounded degree. We show that the relaxation time (defined as the reciprocal of the spectral gap $|\lambda_1-\lambda_2|$) for the dynamics on... | [
"math.PR"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "c mathieu_1",
"name": "Claire Mathieu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "e mossel_1",
"name": "Elchanan Mossel",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
119374166 | quant-ph/0308174 | 2003-08-29 | Proof-of-Concept Experiments for Quantum Physics in Space | Quantum physics experiments in space using entangled photons and satellites are within reach of current technology. We propose a series of fundamental quantum physics experiments that make advantageous use of the space infrastructure with specific emphasis on the satellite-based distribution of entangled photon pairs. ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8548232 | math/0308286 | 2003-08-29 | An uncertainty principle for cyclic groups of prime order | Let $G$ be a finite abelian group, and let $f: G \to \C$ be a complex function on $G$. The uncertainty principle asserts that the support $\supp(f) := \{x \in G: f(x) \neq 0\}$ is related to the support of the Fourier transform $\hat f: G \to \C$ by the formula $$ |\supp(f)| |\supp(\hat f)| \geq |G|$$ where $|X|$ denot... | [
"math.CA",
"math.NT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119400010 | quant-ph/0308173 | 2003-08-29 | A Two-Step Quantum Direct Communication Protocol Using Einstein-Podolsky-Rosen Pair Block | A protocol for quantum secure direct communication using blocks of EPR pairs is proposed. A set of ordered $N$ EPR pairs is used as a data block for sending secret message directly. The ordered $N$ EPR set is divided into two particle sequences, a checking sequence and a message-coding sequence. After transmitting the ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5864751 | cond-mat/0308609 | 2003-08-29 | Discrete--time ratchets, the Fokker--Planck equation and Parrondo's paradox | Parrondo's games manifest the apparent paradox where losing strategies can be combined to win and have generated significant multidisciplinary interest in the literature. Here we review two recent approaches, based on the Fokker-Planck equation, that rigorously establish the connection between Parrondo's games and a ph... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "p amengual_1",
"name": "Pau Amengual",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p amengual_1",
"name": "Pau Amengual",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15830343 | astro-ph/0309009 | 2003-08-30 | Tycho Brahe's supernova: light from centuries past | The light curve of SN 1572 is described in the terms used nowadays to characterize SNeIa. By assembling the records of the observations done in 1572--74 and evaluating their uncertainties, it is possible to recover the light curve and the color evolution of this supernova. It is found that, within the SNe Ia family, th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14876413 | astro-ph/0309019 | 2003-08-31 | XMM-Newton discovery of an X-ray filament in Coma | XMM-Newton observations of the outskirts of the Coma cluster of galaxies confirm the existence of a soft X-ray excess claimed previously and show it comes from warm thermal emission. Our data provide a robust estimate of its temperature (~0.2 keV) and oxygen abundance (~0.1 solar). Using a combination of XMM-Newton and... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
36503732 | hep-ph/0309013 | 2003-09-01 | Antineutrinos from Earth: A reference model and its uncertainties | We predict geoneutrino fluxes in a reference model based on a detailed description of Earth's crust and mantle and using the best available information on the abundances of uranium, thorium, and potassium inside Earth's layers. We estimate the uncertainties of fluxes corresponding to the uncertainties of the element ab... | [
"hep-ph",
"hep-ex",
"nucl-ex",
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11952928 | cond-mat/0309045 | 2003-09-01 | A measure of betweenness centrality based on random walks | Betweenness is a measure of the centrality of a node in a network, and is normally calculated as the fraction of shortest paths between node pairs that pass through the node of interest. Betweenness is, in some sense, a measure of the influence a node has over the spread of information through the network. By counting ... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
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